The Republican National Committee (RNC) provides national leadership for the Republican Party of the United States. It is responsible for developing and promoting the Republican political platform, as well as coordinating fundraising and election strategy. It is also responsible for organizing and running the Republican National Convention. The current chairman is Mike Duncan. Similar committees exist in every U.S. state and most U.S. counties, although in some states party organization is structured by congressional district, allied campaign organizations being governed by a national committee.